Looking for some warmth with my JPLab Utopia micro be'sI heard good things about the Bat and I know it would give you that type of sound but never had a tube amp beforekind of skeptical. I have heard the Mac402 will give you that type of sound and has gotten rave reviews also. Any input inmates would be appreciated.

gotta go with mac. the 402 has autoformers, and the sound is as smooth as silk(in that regard, tube-like. it will also drive any commercial loudspeaker using but a tiny fraction of its rated power. much like your speakers, exceptional.....but also (slightly on the warm side).

gotta go with mac. the 402 has autoformers, and the sound is as smooth as silk(in that regard, tube-like. it will also drive any commercial loudspeaker using but a tiny fraction of its rated power. much like your speakers, exceptional.....but also (slightly on the warm side).

Do you really need an amp with 400w output to drive JM Lab Utopia Micro Be's?

They have an efficiency rating of 89dB (probably slightly overstated) and according to the Website - "Maximal power handling with musical program 100W". I understand that bass-reflex designs need a little welly, but 400w seems extreme.

Mac 402 is the finest sounding amp I have owned and heard - period. I have owned, many amps costing more and none have the meat, weight, ease, body and transparancy of this fine amp. I just love it. Get it and be done with your amp needs for at least 10 years. Speakers may come and go - but keep this amp!

I own a pair of JM lab Mezzo utopia`s used them with a Mcintosh mc352/ c42 combo. Traded the c42for a BAT vk51se used the mc352 with the vk51se for a year or so . Then traded the mc352 for a BAT vk75se. I have had the BAT vk51se/vk75se for maybe 1 1/2 years. My like is for the BAT hands down it just seemed lacking depth to the music when Mcintosh SS was in my system. David